Therefore - Crossword Clue, Answer and Explanation

I've seen this clue in the Sydney Morning Herald, the Universal, the Penny Press, the USA Today, The Mirror, The Telegraph, The Independent, The Wall Street Journal, The Times, the Evening Standard, the King Feature Syndicate, The Guardian, the Newsday, the LA Times and The Star Tribune.

'therefore' is the definition.
(synonyms)

This is the entire clue.

(Other definitions for thus that I've seen before include "In this way" , "as indicated" , "an original Christmas gift" , "It follows" , "Therefore, hence" .)

I've seen this clue in the Penny Press, the USA Today, The Mirror, the Evening Standard, the King Feature Syndicate, the Sydney Morning Herald, The Independent, The Wall Street Journal, The Times, The Guardian, The New York Times, The Washington Post, The Sun, the Newsday, the Universal, The Telegraph, the Newsday.com, the LA Times and The Star Tribune.

'therefore' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for ergo that I've seen before include "Thus" , "Consequently" , "'Cogito, ---- sum'" , "so philosopher wrote in Latin" , "It follows" .)

I've seen this clue in the Penny Press, the USA Today, The Mirror, the Evening Standard, the King Feature Syndicate, the Sydney Morning Herald, The Independent, The Wall Street Journal, The Times, The Guardian, The New York Times, The Washington Post, The Sun, the Newsday, the Universal, The Telegraph, the Newsday.com, the LA Times and The Star Tribune.

'therefore' is the definition.
('so' can mean 'consequently' or 'therefore')

This is the entire clue.

I've seen this clue in the King Feature Syndicate.

Therefore (5)